My computer is very crazy today!

I opened my PC at 11:00 AM. (UTC+2.) I got to it at 1:55 PM. (UTC+2.) The PC wasn't responding to the mouse movements I did. Then, I restarted it, got to the main menu and noticed something strange. I couldn't go on the Internet because the calendar was set in January 1, 2002, at 12:05!.. (UTC+2.) I couldn't even talk well then!